Structural and magnetic properties of bulk alloys and aerosol nanoparticles in the Fe100−xCrx system

Shafranovsky, E. A.; Petrov, Yu. I.; Gich, Martí; Racka, K.; Ślawska‐Waniewska, A.; Roig, Anna; Molins, Elı́es

doi:10.1016/j.jallcom.2005.08.046

Cited by 11 publications

(14 citation statements)

References 27 publications

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“…The structure and Mössbauer spectra of metastable Fe 100−x Co x (x = 2.36 ÷ 80.3) bulk alloy and nanoparticles with an average size of 13-15 nm produced by fast evaporation of the predegassed in vacuum initial alloys in an Ar atmosphere have been studied [83][84][85]. X-ray patterns for the bulk alloys show only a bcc phase without any foreign lines.…”

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

“…The results of studying structure and composition of FeCr particles of 13-18 nm size with a different Cr content are given in works [84,85].…”

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

“…Comparison of magnetic properties of bulk FeCr alloys and nanoparticles produced from them has been fulfilled in [85]. The hysteresis loops for the different FeCr alloys and nanoparticles taken at room temperature are shown in Figure 28.…”

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

“…Let Figure 29: Concentration dependences of saturation magnetization, M S , for both bulk FeCr alloys and nanoparticles defined at the applied field H = 1.1 T and at room temperature. Bulk alloy: [85], [100]. Aerosol particles: [85], ∇ 21 nm [100].…”

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

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Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys

Petrov

Shafranovsky

2012

International Journal of Inorganic Chemistry

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Structure and magnetic properties of aerosol nanoparticles of Fe and its alloys (FeMn, FeNi, FeNiMn, FePt, FeCr, FeCo, and FeCu) have been reviewed. It has been shown that, compared to a bulk material, the particles have a number of specific features being of much fundamental and applied interest. The effect of both a quenched high-temperature Fe modification and its oxides on the structure and magnetism of nanoparticles has been considered in detail. Particular attention has been paid to the recently observed fine structure in the hyperfine field distribution at iron nuclei in Mössbauer spectra for pure iron and its alloys both as a bulk and aerosol nanoparticles. This phenomenon makes it possible to reveal very weak magnetic interactions in the system under study. The plausible origin of these magnetic interactions has been also discussed.

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Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

“…The results of studying structure and composition of FeCr particles of 13-18 nm size with a different Cr content are given in works [84,85].…”

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

Section: Fecr the Structure And Phase Composition Of Fecr Alloys Abomentioning

confidence: 99%

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Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys

Petrov

Shafranovsky

2012

International Journal of Inorganic Chemistry

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“…for instance an amorphous phase, a number of crystalline phases, notably an A15 phase, produced by various off-equilibrium techniques in the whole composition range were investigated in recent years [3][4][5][6]. For similar reasons, the Fe-Cr binary system is of interest to investigate the phase transformations which occur when the alloys become nanostructured.…”

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confidence: 99%

Partial amorphization of an α-FeCr alloy by ball-milling

et al. 2008

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The structural changes of near-equiatomic α-FeCr alloys, ground in a vibratory mill in vacuum and in argon, were followed as a function of milling time. An amorphous phase forms in both cases but at a much faster rate when milling in argon than when milling in vacuum. Amorphisation by ball-milling of α-FeCr alloys is deduced to be an intrinsic phenomenon which is however speeded-up by oxygen. The amorphous phase crystallizes into a bcc Cr-rich phase and a bcc Fe-rich phase when annealed for short times.

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